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How to replace all occurrences of a string using Vue.js filters ?

  • Last Updated : 27 Oct, 2021

In this article, we are going to learn how to replace all occurrences of a particular word with some other word using filters in VueJS. Vue is a progressive framework for building user interfaces. Filters are a functionality provided by Vue components that let you apply formatting and transformations to any part of your template dynamic data. The filter property of the component is an object. A single filter is a function that accepts a value and returns another value. The returned value is the one that’s actually printed in the Vue.js template.

The replacement of the occurrence of a particular word in a given string with some other word can be done by applying a filter on the required string. We will use the JavaScript split() method to split the string on the target word or character that has to be replaced. This will return an array that contains all the words that were in string except the word or character that was used to split the string. We will then join the array back using the join() method. This method accepts a parameter that denotes the string that will be used when joining the array back. This will make it possible to add the replacement words needed. We will finally return the resulting string.

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Example:

index.html






<html>
<head>
  <script src=
  </script>
</head>
<body>
  <div id='parent'>
    <p>
      <strong>Original String: </strong>
      {{st1}}
    <div>
      <strong>After Replacing words: </strong>
      {{ st1 | replace('cse','computer science') }}
    </div>
    </p>
  
    <p>
      <strong>Original String: </strong>{{st2}}
    <div>
      <strong>After Replacing characters: </strong>
      {{ st2 | replace('!','.') }}
    </div>
    </p>
  
  </div>
  <script src='app.js'></script>
</body>
</html>

app.js




const parent = new Vue({
  el: '#parent',
  data: {
    st1: `GfG is a CSE portal.\
          CSE is the study of algorithmic
          processes, CSE is a particular\
          stream of a Engineering also`,
  
    st2: '172!198!108!202',
  },
  
  filters: {
    replace: function (st, rep, repWith) {
      const result = st.split(rep).join(repWith)
      return result;
    }
  }
})

Output:




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